Celebi Ahmet A, Ucar Faruk I, Sekerci Ahmet E, Caglaroglu Murat, Tan Enes
*Department of Orthodontics, Faculty of Dentistry, Ishik University, Erbil, Iraq.
**Department of Orthodontics, Faculty of Dentistry, Selcuk University, Konya.
Eur J Orthod. 2015 Oct;37(5):544-9. doi: 10.1093/ejo/cju082. Epub 2014 Dec 29.
The aim of this study was to evaluate 1. the differences among the cleft sides of unilateral cleft lip and palate (UCLP) patients, non-cleft sides of the same UCLP patients and well matched control patients in the root development and position of permanent upper central incisors and 2. possible gender differences.
The study sample consisted of 40 patient (20 males and 20 females; mean age: 14.84±3.2 years) with non-syndromic UCLP patients, and 40 control patients (20 males and 20 females; mean age: 13.38±1.6 years). Cone-beam computed tomography (CBCT) images were taken off from all patients. All tomographs were obtained in supine position by using CBCT (NewTom 5G, QR, Verona, Italy).
Significant smaller root volume of central incisor was observed on the cleft side than on the non-cleft side of UCLP patients (P < 0.05). No significant difference in the root development and position of the central incisors was found between the non-cleft side of the UCLP and the control group (P > 0.05). There were no statistically significant gender differences in any linear, angular, or volumetric measurements (P > 0.05). Only the root volume of the cleft side was smaller in females than in males (P < 0.05).
In general, root volumes of central incisors on the cleft side were 12.15 per cent smaller than non-cleft side. Root development of the central incisor was much more influenced by the cleft in females than in males.
本研究旨在评估1. 单侧唇腭裂（UCLP）患者的腭裂侧、同一UCLP患者的非腭裂侧以及匹配良好的对照患者在恒上中切牙的牙根发育和位置方面的差异，以及2. 可能存在的性别差异。
研究样本包括40例非综合征性UCLP患者（20例男性和20例女性；平均年龄：14.84±3.2岁）以及40例对照患者（20例男性和20例女性；平均年龄：13.38±1.6岁）。对所有患者进行锥形束计算机断层扫描（CBCT）成像。所有断层扫描均通过CBCT（NewTom 5G，QR，意大利维罗纳）在仰卧位下获得。
观察到UCLP患者腭裂侧中切牙的牙根体积明显小于非腭裂侧（P < 0.05）。UCLP患者非腭裂侧与对照组之间在中切牙的牙根发育和位置上未发现显著差异（P > 0.05）。在任何线性、角度或体积测量中均未发现统计学上显著的性别差异（P > 0.05）。仅腭裂侧的牙根体积在女性中小于男性（P < 0.05）。
总体而言，腭裂侧中切牙的牙根体积比非腭裂侧小12.15%。女性中切牙的牙根发育比男性受腭裂的影响更大。
